The perfect Palm Sunday polyphonic piece, following the propers for the procession, was written by English composer Thomas Weelkes.  Our schola learned it and finally sang it while in procession this past Palm Sunday - quite a feat for a new schola.  Since all the singers liked this song, everyone learned their part more quickly than usual and it was fun to practice. It also is in English:

Hosanna to the Son of David

Blessed be the King that cometh in the name of the Lord.

Thou that sitteth in the highest heavens

Hosanna in excelsis Deo

Given the success with that piece, I decided to download Weelkes' other sacred pieces on Rhapsody.  With trusty old cpdl.org being down, I had to resort to a less user-friendly public domain library (Werner Icking) to search for music, where there was only one sacred Weelkes score available, "When David Heard".  What a text it is based on, though!  Ever since my days of studying for my theology masters under Douglas Bushman (then with U-Dallas, now with Ave Maria University) this text has never been the same to me, because Bushman read it with such emotion, indicating a father's merciful love (2 Samuel 18-19).  Even though his son Absalom had gone to war against King David, when David's soldiers found Absalom --who had gotten into the unfortunate position of having his long hair caught in the branches of the tree and was hanging in midair-- they killed him, but rather than rejoicing over the death of his enemy, this was the King's reaction:

When David heard that Absalom was slain,

he went up to his chamber over the gate and wept

and thus he said:

O my son Absalom, my son, my son Absalom

Would God I had died for thee

O Absalom, my son, o my son.

So when during the liturgical year might we have cause to bring this piece to the Mass?  It doesn't look like this reading made it into the Sunday cycles.  It is the reading of the day Tuesday of Week 4, Year II of the daily Mass readings.  Maybe we could find a way to incorporate it into the 40 hours eucharistic devotion.  Any other ideas?